Coordination Compounds PYQs Set 14 (PDF)

Set 14 of 18 · Questions 391-420 of 522

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Mere Teacher · Previous Year Questions NEET Chemistry · Coordination Compounds · Set 14 (Q391-420)
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391. $Given below are two statements: Statement I: Hybridisation, shape and spin only magnetic moment of K_{3} (Co (CO_{3})_{3}) is sp3 d^{2}, octahedral and 4.9 BM respectively. Statement II: Geometry, hybridisation and spin only magnetic moment values (BM) of the ions (Ni (CN)_{4})^{2 -}, (MnBr_{4})^{2 -} and (CoF_{6})^{3 -} respectively are square planar, tetrahedral, octahedral; dsp^{2}, sp^{3}, sp^{3} d^{2} and 0, 5.9, 4.9 . In the light of the above statements, choose the correct answer from the options given below$ (1) $Statement I is true but Statement II is false$ (2) $Both Statement I and Statement II are false$ (3) $Both Statement I and Statement II are true$ (4) $Statement I is false but Statement II is true$ 392. $The complex that dissolves in water is$ (1) $(N H_{4})_{3} [As (M o_{3} O_{10})_{4}]$ (2) $F e_{4} [Fe(CN)_{6}]_{3}$ (3) $K_{3} [Co (N O_{2})_{6}]$ (4) $[F e_{3} (O H)_{2} (O A c)_{6}]Cl$ 393. $' X' is the number of electrons in t_{2 g} orbitals of the most stable complex ion among (Fe (NH_{3})_{6})^{3 +}, (FeCl_{6})^{3 -}, (Fe (C_{2} O_{4})_{3})^{3 -} and (Fe (H_{2} O)_{6})^{3 +} . The nature of oxide of vanadium of the type V_{2} O_{X} is:$ (1) $Amphoteric$ (2) $Acidic$ (3) $Basic$ (4) $Neutral$ 394. $Which of the following does not show optical isomerism?$ (1) $[C o (N H_{3})_{3} C l_{3}]^{0}$ (2) $[C o (e n) C l_{2} (N H_{3})_{2}]^{+}$ (3) $[C o (e n)_{3}]^{3 +}$ (4) $[C o (e n)_{2} C l_{2}]^{+} (n =ethylenediamine)$ 395. $Among (a)-(d), the complexes that can display geometrical isomerism are (A) [P t (N H_{3})_{3} C l]^{+} (B) [P t (N H_{3}) C l_{5}] (C) [P t (N H_{3})_{2} C l (N O_{2})] (D) [P t (N H_{3})_{4} C l B r]^{2 +}$ (1) $C, D$ (2) $A, B$ (3) $A, B & C$ (4) $A, B, C & D$ 396. $Match List-I with List-II. List-I Complex / (A) [T i (H_{2} O)_{6}]^{2 +} (B) [V (H_{2} O)_{6}]^{2 +} (C) [M n (H_{2} O)_{6}]^{3 +} (D) [F e (H_{2} O)_{6}]^{3 +} List-II Crystal field splitting energy (Δ_{0}) (I) -1.2 (II) -0.6 (III) 0 (IV) -0.8 Choose the correct answer from the options given below:$ (1) $A-II, B-IV, C-I, D-III$ (2) $A-IV, B-I, C-III, D-II$ (3) $A-IV, B-I, C-II, D-III$ (4) $A-II, B-IV, C-III, D-I$ 397. $Coordination number of Fe in the complexes (Fe (CN)_{6})^{4 -}, (Fe (CN)_{6})^{3 -} and (FeCl_{4})^{-} would be respectively$ (1) $2, 3, 3$ (2) $6, 6, 4$ (3) $6, 3, 3$ (4) $6, 4, 6$ 398. $Which of the following statements are correct? i. (Mn (CN)_{6})^{3 -}, (MnCl_{6})^{3 -} both are paramagnetic ii. Both (NiCl_{4})^{2 -}, (Ni (CO)_{4}) are tetrahedral and diamagnetic iii. (Co (NH_{3})_{6})^{3 +} is inner orbital complex, but (Ni (NH_{3})_{6})^{2 +} is outer orbital complex$ (1) $i, ii only$ (2) $i, iii only$ (3) $ii, iii only$ (4) $i, ii, iii$ 399. $The IUPAC name of (Co (NH_{3})_{5} (CO_{3})) Cl is$ (1) $pentaamminecarbonatocobalt(III) chloride$ (2) $carbonatopentamminecobalt(III) chloride$ (3) $pentaamminecarbonatocobaltate(III) chloride$ (4) $pentaamminecobalt(III)carbonate chloride.$ 400. $IUPAC name of [P t (N H_{3})_{3} (B r) (N O_{2}) C l] C l is$ (1) $Triamminebromochloronitroplatinum (IV) chloride$ (2) $Triamminebromonitrochloroplatinum (IV) chloride$ (3) $Triamminechlorobromonitroplatinum (IV) chloride$ (4) $Triamminenitrochlorobromoplatinum (1V) chloride$ 401. $The complex that has highest crystal field splitting energy (Δ), is :$ (1) $K_{2} [C O C l_{4}]$ (2) $[CO (N H_{3})_{5} (H_{2} O)] C l_{3}$ (3) $[CO (N H_{3})_{5} Cl] C l_{2}$ (4) $K_{3} [CO (C N)_{6}]$ 402. $Which statement is incorrect?$ (1) $N i (C O)_{4} ‐tetrahedral paramagnetic$ (2) $‐square planar, diamagnetic$ (3) $N i (C O)_{4} ‐tetrahedral diamagnetic$ (4) $[N i (C 1)_{4}]^{2 -} ‐tetrahedral paramagnetic$ 403. $Which one of the following does not exhibit geometrical isomerism?$ (1) $Octahedral complex with formula (M X_{2} L_{4})$ (2) $Square planar complex with formula (M X_{2} L_{2})$ (3) $Tetrahedral complex with formula [MABXL]$ (4) $Octahedral complex with formula (M X_{2} (L - L)_{2})$ 404. $Among (a)-(d), the complexes that can display geometrical isomerism are : (A) [Pt(N H_{3})_{3} Cl]^{+} (B) [Pt(N H_{3}) C l_{5}]^{-} (C) [Pt(N H_{3})_{2} Cl(N O_{2})] (D) [Pt(N H_{3})_{4} ClBr]^{2 +}$ (1) $(A) and (B)$ (2) $(B) and (C)$ (3) $(D) and (A)$ (4) $(C) and (D)$ 405. $For the complex [M a_{2} b_{2}] if M is s p^{3} or ds p^{2} hybridised respectively then total number of optical isomers are respectively:$ (1) $1, 1$ (2) $2, 1$ (3) $0, 0$ (4) $1, 2$ 406. $Identity the incorrect pair from the following:$ (1) $Photography - AgBr$ (2) $Polythene preparation - TiCl_{4}, Al (CH_{3})_{3}$ (3) $Haber process - Iron$ (4) $Wacker process - PtCl2$ 407. $[Co (NH_{3})_{4} (NO_{2})_{2}] Cl exhibits$ (1) $linkage isomerism, geometrical isomerism and optical isomerism$ (2) $linkage isomerism, ionization isomerism and optical isomerism$ (3) $linkage isomerism, ionization isomerism and geometrical isomerism$ (4) $ionization isomerism, geometrical isomerism and optical isomerism.$ 408. $Oxidation number of Cr in (Cr (CO)_{6}) is$ (1) $+6$ (2) $-6$ (3) $+3$ (4) $0$ 409. $Shape of F e (C O)_{5} is$ (1) $octahedral$ (2) $square planar$ (3) $trigonal bipyramidal$ (4) $square pyramidal.$ 410. $CO is a stronger ligand than Cl^{-}, because$ (1) $CO is a neutral molecule$ (2) $CO has π -bonds$ (3) $CO is poisonous$ (4) $CO is more reactive.$ 411. $Identify monodentate ligand from following.$ (1) $Cyanide ion$ (2) $Ethylenediamine$ (3) $Oxalate ion$ (4) $Ethylenediaminetetraacetate$ 412. $Which one of the following lanthanoids does not form MO_{2} ? [M is lanthanoid metal]$ (1) $Nd$ (2) $Yb$ (3) $Dy$ (4) $Pr$ 413. $The complex cation which has two isomers is$ (1) $[Co(H_{2} O)_{6}]^{3 +}$ (2) $[Co(N H_{3})_{5} Cl]^{2 +}$ (3) $[C o (N H_{3})_{5} N O_{2}]^{2 +}$ (4) $[Co(N H_{3})_{5} Cl]^{+}$ 414. $Choose the correct Statements from the following: (A) Ethane-1 2-diamine is a chelating ligand.(B) Metallic aluminium is produced by elecrtrolysis of aluminium oxide in presence of cryolite.(C) Cyanide ion is used as ligand for leaching of silver.(D) Phosphine act as a ligand in Wilkinson catalyst.(E) The stability constants of Ca^{2 +} and Mg^{2 +} are similar with EDTA complexes. Choose the correct answer from the options given below:$ (1) $(B), (C), (E) only$ (2) $(C), (D), (E) only$ (3) $(A), (B), (C) only$ (4) $(A), (D), (E) only$ 415. $The crystal filed theory is successful in explaining which of the following? I. Ligands as point charges II. Formation and structures of complexes III. Colour IV. Magnetic properties V. Covalent character of metal-ligand bonding:$ (1) $I, II, III only$ (2) $II, III, IV only$ (3) $III, IV, V only$ (4) $II, IV, V only$ 416. $The metal atom present in the complex MABXL (where A, B, X and L are unidentate ligands and M is metal) involves sp^{3} hybridization. The number of geometrical isomers exhibited by the complex is:$ (1) $2$ (2) $0$ (3) $4$ (4) $3$ 417. $Which of the following is an example of homoleptic complex ?$ (1) $[Co(N H_{3})_{4} C l_{2}]$ (2) $[Co (N H_{3})_{6}] C l_{3}$ (3) $[Co (N H_{3})_{5} Cl] C l_{2}$ (4) $[Pt(N H_{3})_{2} C l_{2}]$ 418. $The correct IUPAC name of (PtBr_{2} (PMe_{3})_{2}) is :$ (1) $dibromodi(trimethylphosphine)platinum(II)$ (2) $bis(trimethylphosphine)dibromoplatinum(II)$ (3) $dibromobis(trimethylphosphine)platinum(II)$ (4) $bis[bromo(trimethylphosphine)]platinum(II)$ 419. $Consider the following reaction and statements : [C o (N H_{3})_{4} B r_{2}]^{+} + B r^{-} \to [Co(N H_{3})_{3} B r_{3}] + N H_{3} (I) Two isomers are produced if the reactant complex ion is a cis-isomer. (II) Two isomers are produced if the reactant complex ion is a tran-isomer. (III) Only one isomer is produced if the reactant complex ion is a trans-isomer. (IV) Only one isomer is produced if the reactant complex ion is a cis-isomer. The correct statements are :$ (1) $(III) and (IV)$ (2) $(II) and (IV)$ (3) $(I) and (II)$ (4) $(I) and (III)$ 420. $A group of atoms can function as a ligand only when$ (1) $it is a small molecule$ (2) $it has an unshared electron pair$ (3) $it is a negatively charged ion$ (4) $it is a positively charged ion.$